code: def bckm_params(request):
      return tests_bckm[request.param]
  
file_path: alibi-detect/alibi_detect/utils/tensorflow/tests/test_distance_tf.py
imports: import numpy
  from itertools import product
  import pytest
  import tensorflow
  from alibi_detect.utils.tensorflow import GaussianRBF, mmd2, mmd2_from_kernel_matrix, permed_lsdds
  from alibi_detect.utils.tensorflow import relative_euclidean_distance, squared_pairwise_distance
  from alibi_detect.utils.tensorflow import batch_compute_kernel_matrix
label_desc: Use image node_id 3 for calling a global function with example usage: bckm_params(request) and returns: tests_bckm